Writing instrument



FIG. 1 is a side view of a first embodiment of a writing instrument of the present application seen from the left side of the writing instrument as shown in FIG. 4;

FIG. 2 is a rear view thereof;

FIG. 3 is a side view seen from the right side thereof;

FIG. 4 is a front view thereof;

FIG. 5 is a bottom view thereof;

FIG. 6 is a perspective view thereof;

FIG. 7 is a side view of a second embodiment of a writing instrument of the present application seen from the left side of the writing instrument as shown in FIG. 10;

FIG. 8 is a rear view thereof;

FIG. 9 is a side view seen from the right side thereof;

FIG. 10 is a front view thereof;

FIG. 11 is a bottom view thereof; and,

FIG. 12 is a perspective view thereof. 

The ornamental design for writing instrument, as shown and described. 